Combine the salt, pepper and garlic powder together in a bowl.
Place the ribs on a lightly oiled baking sheet.
Sprinkle the ribs with the salt mixture.
Bake for at least 2 1/2 hours, until the meat is pulling off of the bone.
Heat the sesame oil in a skillet over medium heat then add the garlic and onions.
Cook until the garlic has browned slightly.
You have two options here:
Option 1: If you want to brown the green onions for a deeper flavour ( shown in my photos) then take the ribs out and place on top of the stove. Pour/brush the oil and garlic mixture over the ribs, then return to the oven. Cook until the onions are the desired flavour. Remove, sprinkle with a little extra salt and serve.
Option 2: Remove the ribs and brush/pour the oil and garlic mixture all over them. Serve immediately.
Place ribs on a serving platter, spooning any leftover garlic oil over the top.